Mybon b



(N o Muriel.)

M. R. HUBBELL.

PLOW.

Patented Nov. 3, 1885.

UNITED STATES PATENT OFFICE.

MYRON B. HUBBELL, OF WOLCOTT, VERMONT.

PLOW.

SPECIFICATION forming part of Letters Patent No. 329,834, dated November 3, 1885.

Application tiled November lit 881. Serial No. 45,691. (No model.)

To all whom it may concern.-

Be it known that l, MYRoN R. HUBBELL, of VVolcott, in the county of Lamoille and State of Vermont, have invented certain new and useful Improvements in Reversible Flows; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in which Figure 1 is a side elevation of a plow constructed in accordance with my invention. Fig. 2 is a top plan view of the same; Fig. 3 an end View, and Fig. 4 a sectional view taken longitudinally through the colter; and Fig. 5 is a View of a detail showing the manner of pivoting the rod for throwing the latch.

Similar letters of reference in the several figures denote the same parts.

This invent-ion relates to improvements in that class of plows known as reversible plows, and it consists in certain novelties of construction which I will now proceed to describe.

In the drawings, A represents the beam of the plow; B, a standard secured centrally to the rear end of the beam and forming the landsides; O, a reversible mold-board pivoted centrally to the lower end of the stand ard, as seen at c c, and adapted to be swung up into working position on either side of the beam and to be locked by the engagement of a locking-bar, D, with one or the other oflugs E E on the inner side of the niold-board, as shown.

D represents a bar pivoted at (Z to the standard, with the two shoulders or catches at its free end for cooperating with the lugs E E on the mold-board, and near its other end with the pin (1, adapted to cooperate with a slot, 0, in the rod 0. The end of the rod 0 is bent over and provided wit-h a perforation, and is adapted to slide upon the rod 19, secured at one end to the cross-bar P and at the other to the plow-standard, as shown in Fig. 5. The lower end of the rod 0 is pivoted to the bifurcated rod Q, whose inner end is pivoted to the standard at c, and whose outer ends are connected to the mold-board O, as shown.

The operation of the shifting of the plow will now be readily understood. When the driver desires to reverse the mold-board, he simply disengages the latch D from the lug E, and raising the handles swings the board to the other side of the standard. At the same time the rod 0, attached to Q, moves to the other side, the perforated end of the rod 0 sliding on the rod 19 allowing the necessary longitudinal movement, the pin 01 in the slot 0 moves the bar D to the other side in position to be locked in engagement with the corresponding lug on the under side of the moldboard.

The feature of reversing the latch or locking bar at the same time the mold-board is operated is an important one, as in the oldstyle reversible plows it was necessary to remove the hook from one side by hand, swing it over to the other side and re-engage it.

G represents a clevis secured to the forward end of the beam and composed, first, of a part, 9, shaped like the ordinary clevis, except that its upper arm is extended back some distance beyond the pivot or securing boltf, and, secondly, of a part, g, consisting of a bar reaching back between the handles H H and adapted to engage with a series of notches in the crossbar h, which connects the handles. The part 9 is held at its outer end by the pivot or securing-bolt f, and it is connected to the part or clevis proper, by a rivet, g", or other connection, as shown.

Instead of making the clevis in separate parts it may be made all in one piece. I prefer, however, to make it in separate parts, as then the part 9, or clevis proper, can be a malleable casting and the bar easily attached to it. The bar 9 being held in position by the clevis-boltf at one end and by the notches in the cross-bar h at the other end, and the connection between it and the clevis proper, being intermediate between the ends of the said bar 9, less sidewise play of the bar is permitted than if the clevis were made in one piece.

Another advantage arises from making the clevis in partsnamely, that the bar 9 may be dispensed with and the clevis proper, or part 9, used as an ordinary clevis.

\Vith my improved clevis the driver, without leaving his station at the handles, can shift the clevis from right to left, or vice versa, each time the mold-board is reversed,so as to cause all the furrows to be cut of equal width. The bar of the clevis springs down into the notches in the cross-bar h, and cannot be displaced except by raising it positively out of said notches.

It will be observed that the standard of my plow is arranged centrally of the beam,so that whether the mold-board beshifted to one side or the other said standard will form a smooth straight landside in line with the beam, and also in line with the cutter or colter J. Of course this arrangement of the standard in line with the beam would be impracticable in a reversible plow unless the adjustable clevis were employed, and it is therefore when'combined with such adjustable clevis that I regard the'arrangement as specially valuable. The cutter or colter J is so hung as to allow it to swing forward and upward when the plow is drawn backward, and also to allow stones to passbetween its point and the point of the plow without throwing the plow out of the ground. I preferably hangitinametal socket, K, secured to the under side of the beam, as shown in Figs. 1 and 4. This socket is perforated laterally forthe passage of apivotal bolt,k,and is open at its front, so as to permit the cutter to swing upward. An advantage is gained in supporting the cutter below the beam, as by so doing the bar 9 of the clevis is permitted to run straight back to the handles without a bend in it, which would otherwise have to be made if the shank of the colter extended up above the beam, as commonly. At the forward end of the beam is a wheel, M,

- mounted on a bearing between guide-bars m m,

which pass up through sockets n n, secured to opposite sides of the beam, as shown. The guide-bars do not in any Way interfere with the movement of the clevis to theright or left. They are somewhat inclined, and their lower ends project forward, from which it follows that when the wheel is lowered it is also carried forward, and thereby better steadies the plow than it would ifit moved straight down or swung back, as is usually the case. When the wheel is lowered, the forward end of the beam is raised and the downward draft on the end of the beam is increased, and if the wheel did not move forward, as in my invention,the leverage on the beam would be increased and the plow would be raised too far out of the ground. When the plow is running deep and the wheel is moved back, more weight is 'thrown upon the wheels and the friction on the bottom of the plow isdiminished.

. I amaware that it has been proposed to construct reversible plows with a latch for securing the mold-board mounted upon a telescopic rod, one end of which is attached to the standard and the other to the mold-board, so that when the board is reversed the latch is reversed also; but this device is not nearly as practical nor as secure as mine, as the latch does not connect the board directly with the standard,

and provided with the slot with which the pin"- on the locking-bar co-operates, whereby when the mold-board is reversed the latch is also automatically reversed, substantially as 'described.

2. The combination, with the mold-board*' pivoted to the plow-standard and having the lugs or projections E, of the locking-bar D, provided with the pin 11, and the bar 0, having the slot 0, with which said substantially as described.

3. The combination, with the mold-board pivoted to the'standard, of the locking bar or latch provided with the pin, and the bar 0, sliding on the rod 19, and having the slot '0,

pin co-operates,

with which the pin on the locking-bar co operates, substantially as described.

4. In a reversible plow, the clevis, consisting of the two parts g 9, both said parts being held by the clevis-pin, and the part 9 being riveted or otherwise secured to the part between the ends of the latter, substantially as described, for the purpose specified.

5. The socket K, having the lugs for attaching it to the under side of the plow-beam,'the

open front, and the cross-bar at the back,against 3 which the back of the cutter rests, in com-binat-ion with the cutter J, pivoted within the socket by the cross-bolt k, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

MYRON R. HU BBELL. v

Witnesses:

ARTHUR G. GUYER, A. M. KELLEY. 

